Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLVO2004S80 L6-2.9L TURBO VIN 91 B6294TREPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONMANUFACTURER CODE CHARTSBCM CODES (BRAKE CONTROL MODULE)BCM-0052INTERNAL FAULT
2004 Volvo S80 L6-2.9L Turbo VIN 91 B6294T
Internal Fault
2004 Volvo S80 L6-2.9L Turbo VIN 91 B6294TSECTION Internal Fault
Internal fault
Reading off diagnostic trouble codes (DTCs)
- Ignition on
- Read off diagnostic trouble codes (DTCs).
If any other codes than BCM-0052 are stored, these must be fault-traced first.
Were any diagnostic trouble codes (DTCs) other than BCM-0052 stored?
Yes - DONE
No - Replacing the control module and programming
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Replacing the control module and programming
The control module has registered an internal fault.
Caution! A new control module is delivered without software. The control module must be programmed in order to function after replacement.
For further information about programming and replacing the control module, see Brake Control Module (BCM), replacing Brake Control Module (BCM), Replacing.
Continue - DONE
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RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.